marine products division model sh h shipboard electric ... · pdf filelifting lug hot water...

Marine Products Division

The Electric Heater CompanyP.O. Box 288 ■ Stratford, CT 06615-0288

Phone: 203-378-2659 ■ FAX: 203-378-3593E-mail: [email protected] ■ www.hubbellheaters.com

ISO 9001:2008 ISO

Model MSH & MH

Shipboard Electric Water Heater

The MSH is a storage packaged water heater for marine use.

80-5000 Gallon Capacity15-1600 KW — All Voltages & PhasesReliable■ Only high grade materials

used in construction to ensure long operating life

■ Hydrastone cement lining provides superior protection and tank longevity

■ Heavy duty construction withstands demanding marine use

Marine Approvals ■ United States Coast Guard

(USCG) conformance and Type Approved by American Bureau of Shipping (ABS)

■ USCG conformance and ABS Type Approval eliminates costly delays and uncertainties during ship inspection

Mounting Systems■ Heavy-duty legs secure

the tank to deck■ Side-sway bulkhead

attachment points provide added mounting stability

■ The entire mounting system is integrally welded to tank for maximum stability and safety

Packaged System ■ Fully packaged water

heater saves time and money during installation

■ All electrical operating controls are factory selected and wired to ensure reliable operation

■ Full range of styles, sizes, and optional features to meet your exact water heating needs

A Heavy Duty Storage Electric Water Heater For Marine UseThe Hubbell Model MSH and MH water heater is specifically designed for marine use on board a surface vessel or platform and is in USCG conformance and is ABS Type Approved. By utilizing deck and bulkhead mounting supports, the water heater is securely fastened to the ship structure, thus providing a secure and reliable water heater installation. The heavy-duty carbon steel storage tank is lined with specially formulated hydrastone cement that provides superior protection, tank longevity and withstands demanding marine use. When you specify and install a Hubbell model MSH or MH, knowing that it is in conformance with USCG regulations and is ABS Type Approved, you will have confidence that the ship owner will be provided with a quality product that is a long lasting and trouble free source for hot water.

2

NOGLASSLINING

NOGLASSLINING

2

HydrastoneCementLining

Steel Pressure Vessel

5/8"Tank Cross Section

Cement Lined TanksProvide Longer Service Life

What is the most common reason why a water heater fails?

Failure of a tank’s protective lining allows water to come into direct contact with the steel tank causing it to corrode and leak.

Therefore, the type of protective lining is the single most important feature when determining the quality of any water heater. The ability of a lining to protect the steel tank is primarily based upon its thickness and complete coverage of all steel surfaces.

Linings Available For A Steel TankCement LiningA specially formulated Hydrastone cement applied to a minimum of 5/8" thickness on all surfaces. The cement lining covers 100% of all interior surfaces and is 125 times thicker than glass lining. Due to the thickness and guaranteed coverage of cement lining there is no need for a sacrificial anode. An extremely durable and long lasting lining suitable for hot and cold potable water storage in marine applications.

Phenolic LiningAn epoxy coating applied in 2 coats to a total of 10-12 mils DFT. Typically used in process applications using low conductivity DI, distilled or food grade water.

Non-Ferrous TanksA solid Non-Ferrous tank does not require a lining because the pressure vessel itself is constructed from material which is impervious to the corrosive effects of hot water. This type of tank will provide a significantly longer service life than all lined steel tanks, but is initially more costly.

90/10 Copper-NickelA 90% Copper 10% Nickel alloy provides excellent strength and corrosion resistance. Typically used in applications with corrosive environments (salt water) or in critical marine applications requiring long tank life.

Stainless SteelStainless Steel (Specify: Type 304, 316, or 316L) is suited for applications requiring a corrosion resistant tank with minimal leaching of impurities into the water. Well suited for process, RO and DI water systems.

Note: Unlined non-ferrous tanks do not require a manway. Inspection openings will be provided as required.

3

Model MSH & MHShipboard ElectricWater Heater

Model MSH and MHStandard Equipment

Vessel Construction1. All welded carbon steel vessel designed and built in

strict accordance with the ASME Code Section IV andstamped, certified and registered with the National Boardof Boiler and Pressure Vessel Inspectors.

2. All internal tank surfaces are lined with a minimum of 5/8"thick Hydrastone cement for superior protection and tanklongevity.

3. Designed for 100 psi working pressure and hydrostaticallytested at 150 psi (1 1/2 times the WP).

General1. Heavy duty 2" thick fiberglass blanket insulation covers

the pressure vessel for maximum operating efficiency andminimal standby heat loss.

2. Heavy gauge galvanized steel protective jacket holdsinsulation in place and protected to ensure highly efficientoperation.

3. Integrally welded bulkhead attachment points.4. Entire vessel is supported on heavy duty integrally welded

steel supports for sturdy deck mounting.5. Full five (5) year Non Pro-Rated tank warranty and one (1)

year electrical component warranty.6. Bronze ASME rated combination temperature and

pressure safety relief valve set at the vessel workingpressure and 210ºF.

7. ABS Type Approved and in conformance with USCGregulations.

Electrical Operating Controls1. All electrical operating controls are factory sized,

selected, wired, tested, and mounted in a NEMA 1enclosure to ensure safe and reliable operation.

2. A power distribution block is supplied for single pointelectrical installation.

3. Power fuses rated at a maximum of 60 Amps protecteach heating element branch circuit per NEC and ULrequirements. Each branch circuit has a maximum ratingof 48 Amps.

4. Heavy duty definite purpose magnetic contactor withintegrally mounted power fuse block assembly switchespower on/off to each branch circuit.

5. Heavy duty removable flange type immersion heatingelement provides long service life.

6. Fully adjustable thermostat maintains accurate watertemperature and is sized by the factory to control theappropriate number of heating element circuits.

7. A generously sized transformer provides fused 120V tothe control circuit

8. A fully adjustable (100-240 ºF) safety hi-limit device withmanual reset interrupts power to the control circuit in theevent of over-temperature water in the storage tank.

9. Safety door interlock mechanism interrupts power to thecontrol circuit upon opening the electrical control panel.

10. Louvers in the control panel allow for cooling of theelectrical components to ensure maximum electricalcomponent longevity (when required).

Model MSH and MHOptional Equipment

Vessel 1A. Alternate protective lining:

Phenolic epoxy resin. 1B. Alternate vessel construction:

Stainless Steel (Please specify Type: 304, 316 or 316L) 90/10 Copper-Nickel, other.

1C. Alternate working pressure: Please specify

1D. Alternate tank design: ASME stamped to Section I or VIII

General1. Skid mounting on heavy duty all welded I Beam2. Type 304 stainless steel protective jacket,

please specify if painted.3. Dual energy package provides operational flexibility

for electric and steam or boiler water power.See page 8 for details.

4. Manway 12" x 16" size

5. Inspection opening 3" NPT

6. Specific third party approval including BV, NR-13,Lloyds or MIL spec.

Electrical1. NEMA 4 weather resistant enclosure for outdoor/wet

locations.2. Explosion resistant enclosure for hazardous locations.

Please specify class, division, and group.3. Built-in circuit breaker (with or without shunt trip) or a

built-in non-fused On/Off disconnect switch.4. Alternate element sheath material (Please specify:

Incoloy, Stainless Steel, other).5. Specialized heating element construction including:

Special watt density rating, passivation, electropolishing,hermetic seals or any other feature required to meet theneeds of your application.

6. Factory installed low water cut out device to disengageelectrically the heating element(s) in the event ofinsufficient water in the tank.

7. Dial thermometer and pressure gauge factory installed inthe tank.

8. Intra-tank circulation pump package with On/Off switch tocontinuously circulate water within the tank and therebyreduce stratification.

9. Status indicating lamp(s). 10. Audible alarm system. 11. Digital display electronic temperature controller. Please

specify with or without RS485 communication port forremote operation of the temperature controller.

12. Additional ground connectionsPlease note: optional equipment may impact overall dimensions and weight. Please request submittal drawing from factory.


4

Outline DimensionsModel MSH (vertical)

Mounting Hole4 Places Equally

Spaced 90° Apart.Tanks 26" diameter

and smaller 4" x 4" x 1/4" Base Pads with 5/8"

mounting hole Tanks 30" - 42" dia.

5” x 5” x 1/4" Base Pads with 9/16" mounting hole.

Tanks 48" diameterand larger 6" x 6" x 1/4"

Base Pads with 9/16" mounting hole.

Side View Front View

Combination Cold Water Inlet And Drain

WithdrawalSpace

Protective Jacket

7/8" Bulkhead

Mounting Holes 2 Places

6"

3 1/4"

Protective Jacket

Storage Tank

Top View

Model MH (horizontal)

Tank Cross Section

Steel Pressure Vessel

5/8"CementLining

A

F B

4"

6" 6"

T&P Relief Valve

Lifting Lug

Hot Water Outlet

45o

Base View

1 1/2"

Hot Water Outlet

Lifting Lug

T&P Relief Valve

Pressure Vessel

Insulation

Electric Control Panel

12" x 16" Manway

Electric Heating Element

10"

C

E

D

WithdrawalSpace

Cold Water

Inlet


Electric Heating Element

Supports (Specify Saddles Or Skids)

4"

10" Lifting Lugs

T&P Relief Valve

Hot Water Outlet

Pressure Vessel

InsulationProtective Jacket12" x 16" Manyway

Drain

Side View (Note: optional skid base shown)Front View

G

(when required)

Hydrastone

(when required)

5

Dimensional Data, Model MSH & MH

Storage Capacity(Gallons)

Overall Dimensions (Inches) Storage Tank Inlet

Outlet Sizing(NPT)

Approx. ShippingWeight(Lbs.)

Vertical

DiameterA

HeightB

LengthC

WidthD

HeightE

Bulkhead Mounting

F

Bolt Circle

GDiameterx Length

80 26 64 60 26 32 15 18 22 x 54 1½ 1000120 28 72 71 28 34 15 18 24 x 62 1½ 1150150 30 78 75 30 36 20 20 26 x 68 1½ 1300175 34 73 67 34 40 20 24 30 x 63 1½ 1500200 34 82 76 34 40 20 24 30 x 72 1½ 1700225 34 89 83 34 40 20 24 30 x 79 1½ 1750250 40 74 68 40 46 20 30 36 x 64 1½ 1850275 40 80 74 40 46 20 30 36 x 70 1½ 2000300 40 88 82 40 46 20 30 36 x 78 1½ 2180325 40 92 86 40 46 20 30 36 x 82 1½ 2300350 40 94 88 40 46 20 30 36 x 84 1½ 2500375 46 81 75 46 52 22 36 42 x 71 1½ 2600400 46 85 79 46 52 22 36 42 x 75 1½ 2700425 46 88 82 46 52 22 36 42 x 78 1½ 2900450 46 93 87 46 52 22 36 42 x 83 1½ 3000475 52 79 73 52 58 24 42 48 x 69 2 3100500 52 82 76 52 58 24 42 48 x 72 2 3225525 52 85 79 52 58 24 42 48 x 75 2 3350550 52 89 83 52 58 24 42 48 x 79 2 3400575 52 93 87 52 58 24 42 48 x 83 2 3500600 52 95 89 52 58 24 42 48 x 85 2 3650700 52 107 101 52 58 24 42 48 x 97 2 4000800 52 119 113 52 58 24 42 48 x 109 2 4300900 52 132 126 52 58 24 42 48 x 122 2 48001000 52 145 139 52 58 24 42 48 x 135 2 52001250 58 149 143 58 64 26 48 54 x 139 2 56001500 58 174 168 58 64 26 48 54 x 164 2 60001750 64 168 162 64 70 28 54 60 x 158 3 74002000 64 185 179 64 70 28 54 60 x 175 3 81002500 76 169 163 76 82 32 60 72 x 159 3 82003000 76 197 191 76 82 32 60 72 x 187 3 83003500 88 174 168 88 94 36 72 84 x 164 6 FLG. 89004000 88 195 189 88 94 36 72 84 x 185 6 FLG. 98004500 N/A N/A 178 94 100 40 84 90 x 174 6 FLG. 107005000 N/A N/A 200 94 100 40 84 90 x 196 6 FLG. 11600

Note: All dimensions are approximate and subject to change. Please reference the submittal drawing for actual dimensions. The tank selections above are shown for convenience. A full selection of storage capacities are available by entering the desired capacity into the model number.* 80, 120 and 150 gallon tanks do not come equipped with a manway. Please consult factory if desired on these sizes.


6

Recovery Ratings And Amperage At Selected KWKW

INPUTBTU/HRRATING

Gallons Per Hour (GPH) Heated AtVarious Temperature Rises Amperage Rating At Various Voltages

60 °F Δ 80 °F Δ 100 °F Δ 120 °F Δ 140 °F Δ 208V 3F 240V 3F 380V 3F 440V 3F 480V 3F

KW x 1000 ÷ 1.73 = Amps 3 Φ Volts

KW x 1000 = Amps 1 Φ Volts

Electrical

Notes: The KW selections above are shown for convenience. A full selection of KW ratings from 1 to 1600 KW is available by entering the desired KW into the model number. For alternate voltages including 415, 575 and 600 volt, please consult factory.

Note: Each branch circuit is rated at a maximum of 48 Amps and each circuit is typically operated as an independent temperature step.

150 x 1000 ÷ 1.73 = 180 Total Amp Draw 480180 ÷ 48 Amps max circuit rating = 3.75Round up the number of circuits to 4

Example: 150 KW at 480V 3Φ


15 51,180 102 77 61 51 44 42 36 23 20 18

20 68,240 136 102 82 68 58 56 48 30 26 24

25 85,300 170 128 102 85 73 69 60 38 33 30

30 102,360 205 153 123 102 88 83 72 46 39 36

35 119,420 239 179 143 119 102 97 84 53 46 42

40 136,480 273 205 164 136 117 111 96 61 53 48

45 153,540 307 230 184 153 131 125 108 68 59 54

50 170,600 341 256 205 170 146 139 120 76 66 60

55 187,660 375 281 225 187 161 153 132 84 72 66

60 204,720 409 307 245 205 175 167 145 91 79 72

65 221,780 443 332 266 222 190 181 157 99 85 78

70 238,840 477 358 286 239 205 195 169 106 92 84

75 255,900 511 383 307 256 219 208 181 114 99 90

80 272,960 545 409 327 273 234 222 193 122 105 96

85 290,020 580 435 348 290 248 236 205 129 112 102

90 307,080 614 460 368 307 263 250 217 137 118 108

95 324,140 648 486 389 324 278 264 229 145 125 114

100 341,200 682 511 409 341 292 278 241 152 131 120

110 375,320 750 562 450 375 321 306 265 167 145 132

120 409,440 818 614 491 409 351 333 289 183 158 145

125 426,500 852 639 511 426 365 347 301 190 164 151

150 511,800 1023 767 614 511 438 417 361 228 197 181

175 597,100 1193 895 716 597 511 486 421 266 230 211

200 682,400 1364 1023 818 682 584 556 482 304 263 241

225 767,700 1534 1150 920 767 657 625 542 342 296 271

250 853,000 1705 1278 1023 852 730 695 602 380 328 301

275 938,300 1875 1406 1125 937 803 764 662 418 361 331

300 1,023,600 2046 1534 1227 1023 876 834 723 456 394 361

325 1,108,900 2216 1662 1329 1108 950 903 783 494 427 391

350 1,194,200 2386 1790 1432 1193 1023 973 843 532 460 421

375 1,279,500 2557 1917 1534 1278 1096 1042 903 570 493 452

400 1,364,800 2727 2045 1636 1363 1169 1112 963 608 525 482

450 1,535,400 3068 2301 1841 1534 1315 1251 1084 685 591 542

500 1,706,000 3409 2556 2045 1704 1461 1390 1204 761 657 602

1000 3,412,000 6819 5113 4090 3409 2922 2779 2408 1521 1314 1204

1200 4,094,400 8182 6135 4908 4090 3506 3335 2890 1825 1576 1445

1400 4,776,800 9546 7158 5726 4772 4090 3891 3372 2130 1839 1686

1600 5,459,200 10910 8181 6544 5454 4675 4446 3854 2434 2102 1927

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Option NoteAny and all optional equipment for a water heater must be called out in the written specification. A model number in and of itself does not reflect any optional equipment selected.

Example: MSH250-0-80SLT5 A Hubbell marine vertical water heater with a storage

capacity of 250 gallons and an 80 KW electric heating element. The tank is cement lined. Power required is 440 VAC, 3 phase, 60 Hz.

■ Step 2Storage Capacity:80-5000 U.S. Gallons

■ Step 1Model:MSH = VerticalMH = Horizontal

■ Step 5Voltage / Phase / Hz:RS = 208-1-60R = 208-3-60S = 240-1-60T = 240-3-60W = 277-1-60T3 = 380-3-50/60T7 = 415-3-50/60T5 = 440-3-60T4 = 480-3-60T4S = 480-1-60T6 = 600-3-60

■ Step 4Vessel Type:SL = Hydrastone Cement lined tankGL = Phenolic Lined SteelCN = Solid 90/10 Copper-Nickel SS = Solid Stainless Steel (Specify Type 304 or 316L)

(Manufacturer reserves the right to change specifications without notice.)

Model Number Designation

— —0

■ Step 3Electric KW:5-1600KW

Liters x 0.2641 = GallonsGallons x 3.79 = LitersGallons x 0.003785 = m3

m3 x 264.2 = Gallons

1°C ∆T = 1.8°F ∆T°F = (°C x 1.8) + 32

°C = (°F - 32) x 0.556Watts/Sq.Cm. x 6.4 = Watts/Sq.In.Watts/Sq.In. x 0.155 = Watts/Sq.Cm.psi x 0.06896 = BarBar x 14.5 = psi

Model MSH & MH Sizing InformationStep 1: Solve for the unknown using the formulas stated below

Variables To Solve For:

Metric Conversionspsi x 6.86 = kPakPa x 0.1456 = psiKg/cm2 x 14.28 = psipsi x 0.07 = Kg/cm2Lbs x 0.4536 = KgKg x 2.2 = Lbs

KW Requirement: GPH x °F ∆T x 0.00244 = KW

Temperature Rise: KW x 410 ÷ GPH = °F ∆T

Flow Rate: KW x 410 ÷ °F ∆T= GPH


8

Optional Steam Package

8

Benefit Of Dual Fuel CapabilityThe Hubbell model MSH and MH water heater is available with a factory installed heat exchanger to provide heating capability utilizing ships steam or boiler water. While the ship is under way and the boilers are producing steam, the water heater will operate in “primary” mode and use steam to heat the water. When the ship is dockside, and steam generation is reduced (or completely shut down), the operator can switch the water heater over to electric heating mode by simply turning a switch on the Hubbell control panel which activates the factory packaged and installed electric immersion heaters. This dual fuel capability provides ship operators with complete flexibility in determining which fuel mode is most advantageous to operate at any given time.


Electric Heater

Steam Heating Coil (steam

controls not shown)

Standard FeaturesSteam / Boiler Water Heating Coil1. A high quality factory installed 2 pass U-Tube heating

coil constructed from 18 BWG 3/4" O.D. single wall copper tubing designed for a maximum working pressure of 150 psi.

2. All wetted parts including the tube sheet and baffles are non-ferrous for maximum longevity.

3. Heavy duty fabricated steel head with threaded NPT steam and condensate connections.

Optional FeaturesOptional vessel construction and optional general construction features as shown on page 3.

Steam Heating Coil 1. Double wall tubing with a leak detection port 2. Alternate tubing material please specify:

(Stainless Steel, 90/10 Copper-Nickel, Other) 3. Fabricated steam head constructed from:

(Stainless Steel, Copper Alloy, Other)

Operating Controls 4. Steam controls are factory selected and sized, but

shipped loose for in the field installation by others. 5. Various steam control valves are available to meet

the specific needs of your application, please specify: Self-operated type, pneumatic operated, electric motor operated, separate pressure reducing pilot type.

6. Single solenoid safety system closes the control valve should the water temperature in the tank reach the hi-limit set point. Requires 120 volt 5 amp electrical service.

7. A double solenoid safety system dumps over heated water in the storage tank to drain in addition to closing the control valve. Requires 120 volt 5 amp electrical service.

8. Dial water thermometer and pressure gauge factory installed in the tank.

9. Factory wrapped and baffled steam coil with integral pump package.

10. Steam Controls to be cast steel construction.

Steam Operating Controls1. Steam operating controls are factory selected, sized,

piped and tested to ensure reliable operation.2. All steam components are factory plumbed with

schedule 40 black iron pipe and ready for steam and condensate connections.

3. High quality cast iron pilot operated steam control valve modulates the flow of steam through the heating coil to provide accurate water temperature control.

4. Cast iron Y strainer with 20 Mesh screen protects the steam controls and coil from dirt and debris in the steam supply.

5. Thermostatic drip trap removes condensate from the steam supply line.

6. Heavy duty cast iron float and thermostatic main condensate trap for optimum efficiency.

7. Brass vacuum breaker and dial steam pressure gauge installed in the heating coil head.

Note: Additional steam and boiler water design literature is available in Hubbell brochures titled “ST”,“BW” and “Heating Coils”.


9

Model MSH & MH

Shipboard ElectricWater Heater

9


Steam Component General ConfigurationThe steam control valve maintains accurate water temperature in a steam fired water heater by regulating the flow of steam through the heating coil.

There are four types of steam control valves available for use on a steam fired storage water heater.

Pilot Operated A pilot operated control valve is the most widely used

type of valve for standard water heating applications. In this type of valve, a temperature pilot device utilizes steam to operate the main valve. No external power source is required other than steam. This is a highly dependable temperature control system which is suitable for most applications. As an option, this valve may include a pressure reducing pilot which limits the steam pressure to a predetermined maximum.

Electronic Operated This control valve is similar to a pneumatically operated

system, except in this case the temperature controller is a sophisticated digital display electronic device which outputs a 4-20ma signal to a compact motor mounted on the steam control valve in order to proportionally control the flow of steam to the heating coil. The temperature controller displays set point as well as actual water temperature and is available with an RS485 communications port for remote control.

Self Operating The valve design includes a bulb and capillary assembly

charged with a thermally responsive vapor. The expansion/contraction of the vapor acts upon the valve bellows in order to control the flow of steam through the valve. No external power source is required for operation.

Pneumatically Operated In this configuration the ships air supply feeds a factory

installed temperature controller which operates the steam control valve. The temperature controller sends a precise air signal to the steam control valve which adjusts the flow of steam into the heating coil. The temperature controller is fully adjustable from 50-250°F and requires 20 psi air at a maximum consumption of 0.5 SCFM.

Steam Inlet

Y Strainer

Condensate Outlet

Steam Control

Valve

Adjustable Temperature Pilot

To sensing bulb in tank

Thermostatic Drip Trap

Steam Pressure Gauge

Pneumatic or electronic controller (if required)

Vacuum Breaker

Steam Coil

Y Strainer

F & T Main Condensate Trap



10


10

Please Complete The Following Information:

Tube Sheet Data Outside Diameter Thickness Material Number of Tube holes in the tube sheet Does the tube sheet have Bolt Holes in it? Yes No If Yes: ■ # of bolt holes ■ Dia. of bolt holes ■ Bolt circle

Do the bolt holes straddle the centerline? Yes No

Diameter of the neck nozzle on the tank. Outside Diameter Inside Diameter (Include thickness of neck lining, if any)

Circumference Of Neck

Immersion length of tubes “B” Heating surface area in Sq. Ft. (if known)

Tank Type: Vertical Horizontal Tank dimensions: Diameter Height

Pull space maximum length

3

2

Tube Outside Diameter Material Gauge BWG Type Single Wall Double Wall Design Pressure Design Temperature

Number of passes

Number of tube supports Full Half type Distance to each tube support Material O.D. of supports Thickness

Recovery rated to heat GPH from oF to oF When supplied with the following heat source:

Steam at psig Lbs. / Hour Steam Consumption

Boiler Water at GPM from oF to oF

HTHW at GPM from oF to oF

Pressure Drop Steam psi Boiler or HTHW psi

1

7

6

5

4

8

Heating Coil General Configuration

Rib Gasket

Length B

Tube Support TubesInlet

OutletHead Tube

SheetTank

Flange

Tank Tank LiningRing Gasket


11

Model MSH & MH

Shipboard ElectricWater Heater

11


Steam Consumption Formula

GPH x °F ∆T x 8.33

=

Latent Heat of Steam

Lbs / Hr Steam

Steam Pressure (psi) 0 2 5 10 15 20 25 30 40 50Latent Heat 970 966 960 953 946 939 933 929 920 912

Dual Fuel Model Number Designation

Option NoteAny and all optional equipment for a water heater must be called out in the written specifications. A model number in and of itself does not reflect any optional equipment selected.

Example: MSH400-ST-120SLT5 A Hubbell vertically installed 400 gallon dual fuel marine water heater with

a factory installed steam heating coil as the primary heating source and a 120 KW electric heating element to operate as the secondary heating source. Tank is cement lined. Power required is 440 VAC, 3 phase, 60 Hz. Please note that steam heating capacity and construction features are not identified in the model number and therefore must be noted in the written specifications.

(Manufacturer reserves the right to change specifications without notice.)

■ Step 2Storage Capacity:80-5000 U.S. Gallons

■ Step 1Model:MSH = VerticalMH = Horizontal

■ Step 6Voltage / Phase / Hz:RS = 208-1-60R = 208-3-60S = 240-1-60T = 240-3-60W = 277-1-60T3 = 380-3-50/60T7 = 415-3-50/60T5 = 440-3-60T4 = 480-3-60T4S = 480-1-60T6 = 600-3-60

■ Step 5Tank:SL = Hydrastone Cement lined tankGL = Phenolic Lined SteelCN = Solid 90/10 Copper-Nickel SS = Solid Stainless Steel (specify Type 304, 316 or 316L)

■ Step 3Primary Heating:ST = SteamBW = Boiler WaterO = No steam

— —

■ Step 4Secondary Heating Electric:5-1600KW


Model MSH & MH

Master SpecificationSHIP NAME

SHIPYARD

ENGINEER / NAVAL ARCHITECT

CONTRACTOR / SHIP CHANDLER

Phone: 203- 378-2659 ■ FAX: 203-378-3593 ■ [email protected] ■ www.hubbellheaters.com

Marine Products DivisionThe Electric Heater Company ■ P.O. Box 288 ■ Stratford, CT 06615-0288

Continuing research results in product improvement; therefore these specifications are subject to change without notice. For the most updated information, consult the factory.

ISO 9001:2008 ISO

Committed to continuous improvements Made in the U.S.A.

Provide a quantity of packaged type Marine Electric water heater(s) Model No. as manufactured by HUBBELL The Electric Heater Co., Stratford, CT. The water heater shall be constructed specifically for shipboard installation by utilizing deck and bulkhead mounting supports that are integrally mounted to the pressure vessel. The pressure vessel section, including the electrical control panel, shall be mounted on structural supports and be suitably insulated, jacketed, painted and provided with lifting lugs. The entire unit is to be packaged ready for plumbing and electric service connections and shall bear the UL listing mark certifying the entire water heater. The water heater shall conform to USCG regulations per 46 CFR 53.01-10 and be ABS Type Approved.

The pressure vessel shall be all welded construction and ASME Code Section IV stamped for a working pressure of 100 psi and contain a minimum of

gallons of storage. The storage vessel shall be carbon steel and lined with seamless Hydrastone cement applied to a minimum thickness of 5/8" on 100% of all interior tank surfaces, ( Optional Specifications: Phenolic lined steel tank, solid 90/10 copper- nickel tank, solid Type 304, 316 or 316L Stainless Steel Tank. ) The pressure vessel is to be covered with 2" thick fiberglass blanket insulation and enclosed in a heavy gauge galvanized steel metal jacket finished in gray hammertone enamel. The vessel shall be protected by an ASME approved automatic reseating combination temperature and pressure relief valve set at the tank working pressure and 210 °F.

The recovery section shall be rated at KW which will heat GPH of water at °F rise ( °F to °F).

The heater shall be designed to operate at volts, phase, HZ with a fused low voltage transformer providing 120 volt to all

operating controls. The immersion heating element(s) shall be high quality copper sheathed ( Optional Specification: Incoloy, Type 304, 316 or 321 stainless steel ) and sized to obtain the rated recovery. Each element circuit is to be independently operated through a definite purpose magnetic contactor having a resistive load rating equal to or exceeding the ampere rating of that particular circuit and shall be protected by individual power fuses rated approximately 125% of the ampacity of the circuit. Multiple circuit elements shall be provided with a power distribution block for connecting of the incoming power feeds ( Optional Specifications: Built-in non-fused On/Off disconnect switch, built- in circuit breaker with an On/Off handle. ) A safety door interlock switch shall interrupt power to the control circuit when the control panel door is opened. The control thermostat shall be immersion type and shall be consistent with the recovery rate of the heating element as to the number of steps required. A hi-limit control with a manual reset button shall be factory installed to disconnect all ungrounded conductors to the heating element(s) in the event of an over-temperature condition in the storage section.

Option

Option

Option

The water heater manufacturer shall warranty all components against defects in workmanship and material for a period of one (1) year from date of start up, and the pressure vessel for a full five (5) years Non Pro-Rated ( Optional Specification: full ten (10) years Non Pro-Rated tank warranty ) from start-up, provided that the unit is started within three (3) months of date of shipment and installed and operated within the scope of the tank design and operating capability. Each water heater shall be shipped with a complete set of installation and operating instructions including spare parts list and approved drawing.

Dual Fuel Package

Shall be required Shall not be required

The heating coil shall utilize ( Optional Specification: steam, boiler water, HTHW ) and be rated to heat GPH of water at a °F rise ( °F to °F) when supplied with psi steam (boiler water) to the control valve and consume lbs/hour steam. The heating coil shall be a fully removable immersion U-tube heating coil rated for 150 psi working pressure. The single wall ( Optional Specification: Double wall ) coil shall be constructed from 18 BWG 3/4" OD copper ( Optional Specification: 90/10 Copper-nickel, stainless steel ) tubes. The coil including the tube sheet, baffles, and spacers shall have all non-ferrous wetted parts and a fabricated steel head. The water heater shall (shall not) be supplied with steam operating controls. A self-contained ( Optional Specification: Pneumatic, pilot, electric ) type steam control valve shall regulate the flow of steam to the heating coil in order to control water temperature. A drip trap, main condensate trap, Y strainers, vacuum breaker, and steam pressure gauge shall be factory sized and piped with the steam control valve.

In addition, the following steam options may be selected:

Option: The water heater shall be equipped with a factory-packaged intra-tank circulator to continuously circulate water within the tank to reduce stratification.

Option: The heating coil shall be wrapped and baffled and piped with an integral pump package to force circulate water over the heating coil in order to reduce the coil size.

Option: Single solenoid safety system to close the control valve should the water temperature in the tank reach the hi-limit set point. Requires 5 Amp, 120 Volt service.

Option: Double solenoid safety system dumps over heated water in the storage tank to drain in addition to closing the control valve. Requires 5 Amp, 120 Volt service.

General

Pressure Vessel

Electric Recovery

Electric Controls

Warranty

[Rev D]

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